/*******************************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package ai.platon.pulsar.jobs.common;

import ai.platon.pulsar.persist.WebPage;
import ai.platon.pulsar.persist.gora.generated.GWebPage;
import org.apache.gora.util.IOUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

/**
 * Fetch Entry for MapReduce
 */
public class FetchEntryWritable extends Configured implements Writable {

    private String reservedUrl;
    private WebPage page;

    public FetchEntryWritable() {
        super(null);
    }

    public FetchEntryWritable(FetchEntry entry) {
        this(entry.getConf(), entry.getReservedUrl(), entry.getWebPage());
    }

    public FetchEntryWritable(Configuration conf, String reservedUrl, WebPage page) {
        super(conf);
        this.reservedUrl = reservedUrl;
        this.page = page;
    }

    @Override
    public void readFields(DataInput in) throws IOException {
        reservedUrl = Text.readString(in);
        page = WebPage.box(reservedUrl, IOUtils.deserialize(getConf(), in, null, GWebPage.class), true);
    }

    @Override
    public void write(DataOutput out) throws IOException {
        Text.writeString(out, reservedUrl);
        IOUtils.serialize(getConf(), out, page.unbox(), GWebPage.class);
    }

    public String getReservedUrl() {
        return reservedUrl;
    }

    public WebPage getWebPage() {
        return page;
    }

    @Override
    public String toString() {
        return "<" + reservedUrl + ", " + page + ">";
    }
}
